what is placenta?state its fuction in human female.
Placenta is a special umbilical cord that develops in the fourth week of pregnancy. It establishes an intimate connection between the foetal membrane and the uterine wall.
Function of placenta:
- The exchange of materials between the mother’s blood and the blood of foetus takes place through the placenta.
- It serves as a nutritive, respiratory and excretory organ of the foetus.
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